#include <stdio.h>
int factorial(int n)
{
    if(n==1)
        return 1;
    else
        return n*factorial(n-1);
}
int mystrlen(char *s)
{
    if(*s=='\0')
        return 0;
    else
    {
        s++;
        return 1+mystrlen(s);
    }
}
int mokey_and_peach(int day)
{
    if(day==10)
        return 1;
    else
        return (mokey(day+1)+1)*2;
}
int main()
{
    char s[]="hello";
    printf("%d\n",mystrlen(s));
    printf("%d\n",mokey_and_peach(1));
    return 0;
}